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ASB Inc. · sales@asb.co.kr · Tel: +82-42-528-7223

September 2012

ASF255

5-3000 MHz MMIC Amplifier

1) OIP3 is measured with two tones at an output power of +5 dBm/tone separated

by 1 MHz.

0

500

1000

1500

2000

2500

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

0

500

1000

1500

2000

2500

0

5

10

15

20

25

Frequency (MHz)

0

500

1000

1500

2000

2500

-20

-15

-10

-5

0

Frequency (MHz)

Board Layout (FR4, 40x40 mm

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

Frequency (MHz)

50

1000

2150

Magnitude S21 (dB)

18.2

18.4

18.1

Magnitude S11 (dB)

-8

-10

-14

Magnitude S22 (dB)

-8

-17

-7

Output P1dB (dBm)

21.5

21.5

20.0

Output IP3

38

37

34

Noise Figure (dB)

2.5

2.6

3.0

Supply Voltage (V)

5

5

5

Current (mA)

102

102

102

50 ~ 2150

+5 V

RF IN

RF OUT

ASF255

Vs=5 V

C5=100 pF

R1=680 W

C3=1 pF

L1=270 nH

C4=1 nF

C1=1 mF

C6=1 mF

C2=1 mF